package hgfdfd;

import java.util.Scanner;

public class Dfdg {
    public static void main(String[] args) {
        Scanner scan = new Scanner(System.in);
                System.out.println("请选择功能: 1.取款  2.存款  3.查询余额  0.退卡");
                int command = scan.nextInt();

                switch(command){
                    default:
                        System.out.println("输入错误");
                    case 1:
                        System.out.println("取款操作...");
                        break;
                    case 2:
                        System.out.println("存款操作...");
                        break;
                    case 3:
                        System.out.println("查询余额操作...");
                        break;
                    case 0:
                        System.out.println("退卡操作...");
                        break;

                }
            }
        }

